WEST SPRINGFIELD – Narcotics detectives arrested a 29-year-old Holyoke man on heroin and marijuana charges Wednesday night after seeing large numbers of people coming and going from his room at the Knights Inn.

Capt. John Ferrarini said detectives spotted the unusual activity while surveilling the motel, located at 1557 Riverdale St.

Along with marijuana, police seized approximately 75 bags of heroin, each stamped "Skull and Swords," Ferrarini said.

Juan Alejandro Perez, 29, of 270 Walnut St., Holyoke, was charged with two counts of distribution of heroin (subsequent offense), possession of heroin with intent to distribute and distribution of marijuana.